* [PATCH] block: aoe: fixup coccinelle warnings
@ 2021-10-21 6:49 cgel.zte
2021-10-21 14:55 ` Jens Axboe
0 siblings, 1 reply; 2+ messages in thread
From: cgel.zte @ 2021-10-21 6:49 UTC (permalink / raw)
To: justin; +Cc: axboe, linux-block, linux-kernel, Ye Guojin, Zeal Robot
From: Ye Guojin <ye.guojin@zte.com.cn>
coccicheck complains about the use of snprintf() in sysfs show
functions:
WARNING use scnprintf or sprintf
Use sysfs_emit instead of scnprintf or sprintf makes more sense.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Ye Guojin <ye.guojin@zte.com.cn>
---
drivers/block/aoe/aoeblk.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index e436b0e8eff5..52484bcdedb9 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -37,8 +37,7 @@ static ssize_t aoedisk_show_state(struct device *dev,
struct gendisk *disk = dev_to_disk(dev);
struct aoedev *d = disk->private_data;
- return snprintf(page, PAGE_SIZE,
- "%s%s\n",
+ return sysfs_emit(page, "%s%s\n",
(d->flags & DEVFL_UP) ? "up" : "down",
(d->flags & DEVFL_KICKME) ? ",kickme" :
(d->nopen && !(d->flags & DEVFL_UP)) ? ",closewait" : "");
@@ -52,8 +51,8 @@ static ssize_t aoedisk_show_mac(struct device *dev,
struct aoetgt *t = d->targets[0];
if (t == NULL)
- return snprintf(page, PAGE_SIZE, "none\n");
- return snprintf(page, PAGE_SIZE, "%pm\n", t->addr);
+ return sysfs_emit(page, "none\n");
+ return sysfs_emit(page, "%pm\n", t->addr);
}
static ssize_t aoedisk_show_netif(struct device *dev,
struct device_attribute *attr, char *page)
@@ -85,7 +84,7 @@ static ssize_t aoedisk_show_netif(struct device *dev,
ne = nd;
nd = nds;
if (*nd == NULL)
- return snprintf(page, PAGE_SIZE, "none\n");
+ return sysfs_emit(page, "none\n");
for (p = page; nd < ne; nd++)
p += scnprintf(p, PAGE_SIZE - (p-page), "%s%s",
p == page ? "" : ",", (*nd)->name);
@@ -99,7 +98,7 @@ static ssize_t aoedisk_show_fwver(struct device *dev,
struct gendisk *disk = dev_to_disk(dev);
struct aoedev *d = disk->private_data;
- return snprintf(page, PAGE_SIZE, "0x%04x\n", (unsigned int) d->fw_ver);
+ return sysfs_emit(page, "0x%04x\n", (unsigned int) d->fw_ver);
}
static ssize_t aoedisk_show_payload(struct device *dev,
struct device_attribute *attr, char *page)
@@ -107,7 +106,7 @@ static ssize_t aoedisk_show_payload(struct device *dev,
struct gendisk *disk = dev_to_disk(dev);
struct aoedev *d = disk->private_data;
- return snprintf(page, PAGE_SIZE, "%lu\n", d->maxbcnt);
+ return sysfs_emit(page, "%lu\n", d->maxbcnt);
}
static int aoedisk_debugfs_show(struct seq_file *s, void *ignored)
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] block: aoe: fixup coccinelle warnings
2021-10-21 6:49 [PATCH] block: aoe: fixup coccinelle warnings cgel.zte
@ 2021-10-21 14:55 ` Jens Axboe
0 siblings, 0 replies; 2+ messages in thread
From: Jens Axboe @ 2021-10-21 14:55 UTC (permalink / raw)
To: justin, cgel.zte; +Cc: Zeal Robot, linux-kernel, Ye Guojin, linux-block
On Thu, 21 Oct 2021 06:49:31 +0000, cgel.zte@gmail.com wrote:
> From: Ye Guojin <ye.guojin@zte.com.cn>
>
> coccicheck complains about the use of snprintf() in sysfs show
> functions:
> WARNING use scnprintf or sprintf
>
> Use sysfs_emit instead of scnprintf or sprintf makes more sense.
>
> [...]
Applied, thanks!
[1/1] block: aoe: fixup coccinelle warnings
commit: ff06ed7e815ccd3f80cfd4d5dd30687bc722e871
Best regards,
--
Jens Axboe
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-10-21 14:55 ` Jens Axboe
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